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我正在嘗試構建適用於Mac OSX的Firefox插件,它構建得很好,但我不明白鏈接器失敗的原因。Firefox NPAPI Xcode鏈接錯誤
這裏是連接器的日誌:
Undefined symbols:
"_NPN_ReleaseVariantValue", referenced from:
_NPP_New in npp_gate.o
_NPP_New in npp_gate.o
"_NPN_MemAlloc", referenced from:
String2Variant(_NPVariant*, char const*)in plugin.o
"_NPN_GetValue", referenced from:
_NPP_New in npp_gate.o
"_NPN_ReleaseObject", referenced from:
CPlugin::~CPlugin()in plugin.o
CPlugin::~CPlugin()in plugin.o
"_NPN_Version", referenced from:
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
"_NPN_UserAgent", referenced from:
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
"_NPN_GetProperty", referenced from:
_NPP_New in npp_gate.o
_NPP_New in npp_gate.o
"_NPN_GetURL", referenced from:
_NPP_New in npp_gate.o
CPluginData::Fire_OnZoomChange() in CTPlugin.o
CPluginData::Fire_OnPIPMove() in CTPlugin.o
CPluginData::Fire_OnItem(int, bool)in CTPlugin.o
CPluginData::Fire_OnClose(char const*)in CTPlugin.o
CPluginData::Fire_OnWheel(int) in CTPlugin.o
CPluginData::Fire_OnRightClick(int, int)in CTPlugin.o
CPluginData::Fire_OnKeyPress(unsigned short)in CTPlugin.o
CPluginData::Fire_OnMouseDn(int, int)in CTPlugin.o
CPluginData::Fire_OnMouseUp(int, int)in CTPlugin.o
CPluginData::Fire_OnMouseMove(int, int)in CTPlugin.o
CPluginData::Fire_OnClick(int, int)in CTPlugin.o
CPluginData::Fire_OnSelect() in CTPlugin.o
CPluginData::Fire_OnStatus(char const*)in CTPlugin.o
CPluginData::Fire_OnImage(int, int, int, int)in CTPlugin.o
"_NPN_CreateObject", referenced from:
CPlugin::GetScriptableObject() in plugin.o
"_NPN_GetStringIdentifier", referenced from:
_NPP_New in npp_gate.o
_NPP_New in npp_gate.o
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
CPlugin::CPlugin(_NPP*)in plugin.o
"_NPN_InvalidateRect", referenced from:
CPluginData::Refresh(bool) in CTPlugin.o
"_NPN_RetainObject", referenced from:
CPlugin::GetScriptableObject() in plugin.o
我真的不明白我做了什麼不好的! 我錯過了圖書館鏈接?在此先感謝=)
編輯:添加代碼示例,從String2Variant在plugin.o的_NPN_MemAlloc:
static void String2Variant(NPVariant *result, LPCTSTR value)
{
if (value)
{
ClassUnicode cu;
char *utf8String = cu.CurrentModeToUTF8(value);
uint32 len = (uint32) strlen(utf8String);
char *clone = (char *)NPN_MemAlloc(len+1);
memcpy(clone,utf8String,len);
clone[len] = '\0';
} else
{
result->type = NPVariantType_String;
result->value.stringValue.UTF8Characters = NULL;
result->value.stringValue.UTF8Length = 0;
}
}
好的,謝謝你的幫助。我認爲我必須做一些接近其他功能的東西?這兩種解決方案有什麼區別?當這個在Firefox中改變?你有鏈接嗎?再次感謝您的幫助=) – unpythonicguy
是的,您需要爲其他功能做同樣的事情 - 簡單地複製測試插件中的代碼應該是最簡單的。這兩種解決方案之間沒有真正的區別,第二種方法只是允許您保持其他代碼不變(它可以繼續調用'NPN_MemAlloc'而不是調用'sBrowserFuncs-> memalloc')。而且 - 這並沒有改變,它一直是這樣的(見http://www.podgoretsky.com/ftp/docs/Internet/Netscape%20Plug-Ins/ch8.htm,這個解釋講述了Netscape ** Navigator ** 3.0這是古老的)。 –
好的,謝謝。我詢問了這個變化,因爲這個插件是用xulrunner <1.8 – unpythonicguy